Transformational plasticity in Bi/sub 2/O/sub 3/
Conference
·
· J. Am. Ceram. Soc.; (United States)
OSTI ID:7128566
Transformational plasticity associated with the monoclinic-to-cubic phase transition at 730/sup 0/C in Bi/sub 2/O/sub 3/ was observed and characterized. This phenomenon is explained in terms of Greenwood and Johnson's model of internal stress-induced deformation, proceeding, in this instance, by a time-dependent, grain-size-sensitive creep mechanism, probably grain-boundary sliding. Criteria are proposed for choosing other prospective transformationally plastic ceramics; they are met by Bi/sub 2/WO/sub 6/, which also exhibits extensive transformation plasticity.
- Research Organization:
- Pennsylvania State Univ., University Park
- OSTI ID:
- 7128566
- Conference Information:
- Journal Name: J. Am. Ceram. Soc.; (United States) Journal Volume: 58:1-2
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Conference
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Tue Dec 31 23:00:00 EST 1974
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OSTI ID:4030023
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Journal Article
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·
OSTI ID:211696
Stereochemical influence of the Bi/sup 3 +/ lone pair of electrons on polymorphism in Bi/sub 2/WO/sub 6/
Journal Article
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Sun Jul 01 00:00:00 EDT 1984
· Mater. Res. Bull.; (United States)
·
OSTI ID:5105550
Related Subjects
36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
CREEP
CRYSTAL STRUCTURE
DEFORMATION
GRAIN BOUNDARIES
GRAIN SIZE
MECHANICAL PROPERTIES
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PLASTICITY
SIZE
STRESSES
TIME DEPENDENCE
VERY HIGH TEMPERATURE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
CREEP
CRYSTAL STRUCTURE
DEFORMATION
GRAIN BOUNDARIES
GRAIN SIZE
MECHANICAL PROPERTIES
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PLASTICITY
SIZE
STRESSES
TIME DEPENDENCE
VERY HIGH TEMPERATURE